modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/20010117-2.c (about)

     1  unsigned char a, b;
     2  
     3  void baz (void)
     4  {
     5    if (b & 0x08)
     6      {
     7        int g = 0;
     8        int c = (b & 0x01);
     9        int d = a - g - c;
    10        int e = (a & 0x0f) - (g & 0x0f);
    11        int f = (a & 0xf0) - (g & 0xf0);
    12        int h = (a & 0x0f) - (g & 0x0f);
    13  
    14        if ((a ^ g) & (a ^ d) & 0x80) b |= 0x40;
    15        if ((d & 0xff00) == 0) b |= 0x01;
    16        if (!((a - h - c) & 0xff)) b |= 0x02;
    17        if ((a - g - c) & 0x80) b |= 0x80;
    18        a = (e & 0x0f) | (f & 0xf0);
    19      }
    20  }